Solutions by everydaycalculation.com

47 - 69 is -221.

- Find the least common denominator or LCM of the two denominators:

LCM of 7 and 9 is**63**

Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,

47 = 4 × 97 × 9 = 3663 - Likewise, for the 2nd fraction, since 9 × 7 = 63,

69 = 6 × 79 × 7 = 4263 - Subtract the two like fractions:

3663 - 4263 = 36 - 4263 = -663 - After reducing the fraction, the answer is -221

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